Prior to Tally.ERP 9, while printing reports that exceed one page, the height of the header and footer remained the same on all the pages, even if a lesser or no height is specified in Page Break Part of TDL. However, the Page Break behavior in TDL is now enhanced to utilize the entire page.
Because of this there is an alignment problem in customized Pre-printed Invoice where Height is not specified in the Body or Details part of TDL. Due to this the Body part tries to consume the entire height of the invoice. So, in order to restore the same behavior as in Tally 9, the Height needs to be specified in the Main Body details Part of TDL.